Vladislav Agafonov Email and Phone Number

This project tackled the high cost barrier of Optical Coherence Tomography (OCT) by leveraging a cost-effective light source commonly used in telecommunications. Wavelength shift capabilities have been demonstrated via thermal tuning, paving the way for low-cost swept-source OCT devices. I designed, implemented and compared two low-cost scanners for such a device — utilizing MEMS mirrors and mechanically-controlled lenses. One of them has been validated for full-eye OCT in vivo examination. The system with low-cost scanners on board presents a viable solution for point-of-care medical diagnostics, promising expanded access to OCT.

Student Chapters are groups based at educational institutions across the globe that play a critical role in fostering future leaders of optics and photonics. Chapters are supported by and are an integral part of Optica (former Optical Society of America - OSA) and SPIE. We are mainly working on practicing leadership, organising scientific outreach events and developing a platform for networking.

The performance of photoresist is a crucial factor for the performance of 3D-microprinting based on two-photon polymerization. I contributed to the topic development by literature research and photoresist characterization using test structures that allowed simultaneous investigation of both photoresist shrinkage and resolution.

My work in the Research Department comprised advanced measurements of optical absorption coefficients of nonlinear optical crystals. A novel method of piezoresonance laser calorimetry (PRLC) was utilised for evaluating small optical absorption coefficients. In my work, the PRLC method was developed for its application to crystals with a pronounced surface absorption and was proposed a practical way to calculate the surface absorption coefficient.

Research internship on improving solar cells efficiency. The project aimed to study organic singlet fission (SF-) materials and their efficiency on a traditional for solar cells silicon substrate. Using custom-designed confocal laser microscope we managed to select the most suitable substances for SF-process at organic-inorganic interface.

I conducted experiments on carbon nanotubes separation by the type of conductivity using the method of two-phase polymer extraction. The challenge was to find proper polymer concentrations to get as pure fraction as we could. The fraction purity study was based on spectrophotometry and Raman spectroscopy.